Zeratul is a powerful support hero, able to grant units extra shields with Void Armor and kill high-priority targets with Shadow Strike. He attacks quickly and does high damage, allowing him to rapidly dispatch enemies as long as he isn't detected. Even if he is, Blink allows him to quickly escape danger.

Map editor files indicate Zeratul once had the "Blink Strike" and "Void Sanctuary" abilities. The latter is partially complete as an ability, with a button tooltip that indicates it created a dome that slowed enemies inside, similar to the mothership's Time Bomb.[1]